public void Circumscribe()
{
Assert.AreEqual(rectD, RectD.Circumscribe(
rectD.TopLeft, rectD.TopRight, rectD.BottomLeft, rectD.BottomRight));
Assert.AreEqual(rectF, RectF.Circumscribe(
rectF.TopLeft, rectF.TopRight, rectF.BottomLeft, rectF.BottomRight));
// RectI.Circumscribe extends one past the specified points
Assert.AreEqual(new RectI(1, 2, 5, 6), RectI.Circumscribe(
rectI.TopLeft, rectI.TopRight, rectI.BottomLeft, rectI.BottomRight));
}